//
// server.cpp
// ~~~~~~~~~~
//
// Copyright (c) 2003-2015 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//

#include "server.hpp"
#include <boost/bind.hpp>
#include <string>
using namespace std;
MCommuModForServInterface * MCommuModForServInterface::CreateApi(
    const char * address,
    unsigned int _Port, 
    CCommuModForServSpi * _Spi, 
    size_t _threadCount)
{
    try {
        string _strAddress = address;
        string _strPort;
        std::stringstream ss;
        ss << _Port;
        ss >> _strPort;

        return new http::server2::server(_strAddress, _strPort, _Spi, _threadCount);
    }
    catch (std::bad_alloc&)
    {
        return NULL;
    }
}
namespace http {
namespace server2 {

server::server(const std::string& address, const std::string & port,
    CCommuModForServSpi * spi_handler, std::size_t io_service_pool_size)
  : io_service_pool_(io_service_pool_size),
    signals_(io_service_pool_.get_io_service()),
    acceptor_(io_service_pool_.get_io_service()),
    new_connection_(),
    request_handler_(spi_handler)
{
  // Register to handle the signals that indicate when the server should exit.
  // It is safe to register for the same signal multiple times in a program,
  // provided all registration for the specified signal is made through Asio.
    signals_.add(SIGINT);
    signals_.add(SIGTERM);
#if defined(SIGQUIT)
    signals_.add(SIGQUIT);
#endif // defined(SIGQUIT)
    signals_.async_wait(boost::bind(&server::handle_stop, this));

    // Open the acceptor with the option to reuse the address (i.e. SO_REUSEADDR).
    boost::asio::ip::tcp::resolver resolver(acceptor_.get_io_service());
    boost::asio::ip::tcp::resolver::query query(address, port);
    boost::asio::ip::tcp::endpoint endpoint = *resolver.resolve(query);
    acceptor_.open(endpoint.protocol());
    acceptor_.set_option(boost::asio::ip::tcp::acceptor::reuse_address(true));
    acceptor_.bind(endpoint);
    acceptor_.listen();

    start_accept();
}

server::~server()
{
}

void server::run()
{
    io_service_pool_.run();
}

bool server::StartListen()
{
    run();
    return true;
}

void server::StopListen()
{
    handle_stop();
}

void server::Release()
{
    delete this;
}

void server::start_accept()
{
    new_connection_.reset(new connection(
          io_service_pool_.get_io_service(), request_handler_));
    acceptor_.async_accept(new_connection_->socket(),
        boost::bind(&server::handle_accept, this,
          boost::asio::placeholders::error));
}

void server::handle_accept(const boost::system::error_code& e)
{
    if (!e)
    {
        new_connection_->start();
    }

    start_accept();
}

void server::handle_stop()
{
    io_service_pool_.stop();
}

} // namespace server2
} // namespace http
